How to use dynamic DDNS in router? What are the main functions? What is the main purpose? Who can say thank you?

Apply for a domain name at the domain name provider (an account number and password will be provided) and log in to the dynamic DDNS of the router to get the resolution of this domain name. Remember this domain name in the future and you can access the home network.

Dynamic DDNS needs to be used in combination with the router's regular forwarding. For example, it needs to use port 80 to build a website at home, but dynamic DDNS can only resolve the domain name to this network.

You cannot specify which machine it is. If yes, a virtual server is needed in normal forwarding, and port 80 is mapped to port 80 of the designated machine, so that the website can be accessed through this domain name.

Second, the use function:

DDNS captures the IP address that users change every time, and then maps it to the domain name, so that other Internet users can communicate through the domain name. All the end customers need to remember is the domain name given by the dynamic domain name provider, no matter how they implement it.

The object of dynamic domain name server means that IP is dynamically changing. Ordinary DNS is based on static IP, which may be one-to-many or many-to-many, and IP is fixed one or more. But the IP of DDNS is changeable and random. With the change of market demand, DDNS requires more and more functions and is more and more convenient. Now there are devices on the market that don't need the support of third-party DDNS.

Third, the scope of use:

1. At present, most ISPs provide dynamic IP (such as dial-up Internet access). If we want to publish it in our own domain on the Internet, DDNS provides a solution. It can automatically update the floating IP that users change every time, and then correspond it to the domain, so that other Internet users can communicate through the domain.

2.DDNS allows us to set up servers such as WEB\MAIL\FTP in our own home or at home, without paying the rent of virtual host. (provided that you can bear the rate of ADSL upload)

3, the host is its own, the space can be expanded according to its own needs, and the maintenance is more convenient. With the domain name and space for building a website, FTP server and mailbox server are not a problem.